With IGMP Snooping switches identify which ports multicast group members hosts are
associated with to optimize the distribution of multicast traffic.
Some common use-cases for IGMP Snooping are:
Configuring IGMP Snooping on
switches for specific VLANs.
Enabling the feature globally for
all edge switches in specific VLANs assigned to a network policy.
Supporting IGMP Snooping to be
disabled using switch template VLAN attributes override or device-level
configuration override.
The IGMP Snooping feature can be configured in multiple locations, in an overriding
hierarchy, listed in order of priority:
Device Specific VLAN configuration
VLAN attributes screen
Device templates
Common settings
When IGMP Snooping is not configured, the higher-level settings take effect. For
example, if device-specific VLAN IGMP settings are set to disabled, the VLAN
attributes settings for the VLAN take effect.
